How to sign: the smallest whole number or a numeral representing this number
"he has the one but will need a two and three to go with it"; "they had lunch at one";
Within this category: monad, singleton
How to sign: not married or related to the unmarried state
"unmarried men and women"; "unmarried life"; "sex and the single girl"; "single parenthood"; "are you married or single?";
See also: unmated
Similiar / Same: unmarried